How Do I Setup The Table Prefix For My SQL Database For WordPress

I’m doing a manual install of wordpress & have already setup my MySQL
database using the database wizard & nowhere in the database setup
was there a way for me to pick my own table prefix.

I previously installed wordpress using my hosts software installer & then used the plugin “WP Security Scan” & it warned me about the table prefix wp_ needing changed.

I’m trying to set it up correctly the first time to prevent
SQL injection attacks from being performed.

I emailed my host & they said that wordpress sets it up on it’s own I know it does wp_

How can I set it up correctly the 1st time during the manual install it’s a pain to change once it’s setup wrong.